John Wiley & Sons, Inc. © 2005

Chapter 6Chapter 6

Inventories

Prepared by Naomi KarolinskiPrepared by Naomi KarolinskiMonroe Community CollegeMonroe Community College

andandMarianne BradfordMarianne Bradford

Bryant CollegeBryant College

Accounting Principles, 7Accounting Principles, 7thth Edition Edition

Weygandt Weygandt •• Kieso Kieso •• Kimmel Kimmel

CHAPTER 6

INVENTORIESAfter studying this chapter, you should be able to:1 Describe steps in determining inventory

quantities2 Explain the basis of accounting for inventories

and describe the inventory cost flow methods3 Explain the financial statements and the tax

effects of each inventory cost flow method4 Explain the lower of cost or market basis of

accounting for inventories5 Indicate the effects of inventory errors on the

financial statements6 Compute and interpret inventory turnover

• Balance sheet of merchandising and manufacturing companies– inventory significant current asset

• Income statement– inventory is vital in determining results

• Gross profit– (net sales - cost of goods sold)

• watched by management, owners, and others

INVENTORY BASICS

Merchandise inventory

1 Owned by the company

2 In a form ready for sale

MERCHANDISE INVENTORY CHARACTERISTICS

•Manufacturing inventories– may not yet be ready for sale

•Classified into three categories:1 Finished goods

ready for sale2 Work in process

various stages of production(not completed)

3 Raw materials components on hand waiting to be used

CLASSIFYING INVENTORY IN A MANUFACTURING ENVIRONMENT

To prepare financial statements determine

1. the number of units in inventory by taking a physical inventory of goods on hand physical inventory by counting, weighing or measuring

2. The ownership of goods

DETERMINING INVENTORY QUANTITIES

STUDY OBJECTIVE 1

DETERMINING COST OF GOODS ON HAND

3. apply unit costs to the total units on hand for each item

4. total the cost of each item of inventory to determine total cost of goods on hand

TAKING A PHYSICAL INVENTORY

Internal control principles for inventory:

1 Segregation of duties

counting by employees not having custodial responsibility for the inventory

2 Establishment of responsibility

each counter should establish the authenticity of each inventory item

TAKING A PHYSICAL INVENTORY

3 Independent internal verification

second count by another employee

4 Documentation procedures

pre-numbered inventory tags

5 Independent internal verification

designated supervisor checks all inventory items tags, no items have more than one

tag

• Goods in transit:included in the inventory of the party that has legal title to the goods

• FOB (Free on Board) shipping point: ownership of the goods passes to the buyer when the public carrier accepts the goods from the seller

• FOB destination point:legal title to the goods remains with the seller until the goods reach the buyer

OWNERSHIP OF GOODS IN TRANSIT

TERMS OF SALE

Consignment: the holder of the goods (consignee) does not own the goods – ownership remains with the consignor of

the goods until the goods are sold – consigned goods should be included in the

consignor’s inventory, not the consignee’s inventory

Consignee Company

CONSIGNED GOODS

Owned by a consignor; do not count in consignee inventory

INVENTORY ACCOUNTING SYSTEMS

1 Perpetual• detailed records • cost of each item maintained • cost of each item sold is determined whensale occurs

2 Periodic• cost of goods sold is determined at the end of accounting period

Basis of Accounting for InventoriesPeriodic Cost Flow Methods

STUDY OBJECTIVE 2

• Revenues from the sale of merchandise are recorded when sales are made in the same way as in a perpetual system.

• No calculation of cost of goods sold is made at the time of sale of the merchandise.

• Physical inventories are taken at end of period to determine:– the cost of merchandise on hand– the cost of the goods sold during the period

ALLOCATING INVENTORIABLE COSTS

• Inventory costs- periodic inventory system – allocated between ending inventory and cost of goods sold– allocation is made at the end of the accounting period

1 the costs assignable to the ending inventory are determined2 the cost of the ending inventory is subtracted from the cost of goods available for sale to determine the cost of goods sold3 cost of goods sold is then deducted from sales revenues in accordance with the matching principle to get gross profit

COST OF GOODS SOLD

Cost of Goods Sold –ReviewPeriodic inventory systemThree steps are required:

1. record purchases of merchandise,2. determine the cost of goods

purchased, 3. determine the cost of goods on hand

at the beginning and end of the accounting period

To determine Cost of Goods Purchased:1 subtract contra purchase accounts of

Purchases Discounts and Purchases Returns and Allowances from Purchases to get Net Purchases

2 add Freight-in to Net Purchases

DETERMINING COST OF GOODS PURCHASED

ALLOCATION (MATCHING) OF POOL OF COSTS

STUDY OBJECTIVE 5

$15,000 $105,000

$ 120,000

The cost of goods available for sale is allocated between

a. beginning inventory and ending inventory.

b. beginning inventory and cost of goods on hand.

c. cost of goods purchased and cost of goods sold.

d. beginning inventory and cost of goods purchased.

The cost of goods available for sale is allocated between

a. beginning inventory and ending inventory.

b. beginning inventory and cost of goods on hand.

c. cost of goods purchased and cost of goods sold.

d. beginning inventory and cost of goods purchased.

USING ACTUAL PHYSICAL

FLOW COSTING• Costing of the inventory is complicated because

specific items of inventory on hand may have been purchased at different prices.

• The specific identification method tracks the actual physical flow of the goods.

• Each item of inventory is marked, tagged, or coded with its specific unit cost.

• Items still in inventory at the end of the year are specifically costed to arrive at the total cost of the ending inventory.

SPECIFIC IDENTIFICATION METHOD

USING ASSUMED COST FLOW METHODS

• Other cost flow methods are allowed since specific identification is often impractical.

• These methods assume flows of costs that may be unrelated to the physical flow of goods.

• For this reason we call them assumed cost flow methods or cost flow assumptions. They are:

1 First-in, first-out (FIFO).

2 Last-in, first-out (LIFO).

3 Average cost.

FIFO• The FIFO method

– earliest goods purchased are the first to be sold.

– often parallels the actual physical flow of merchandise.

– the costs of the earliest goods purchased are the first to be recognized as cost of goods sold.

FIFO

ALLOCATION OF COSTS - FIFO METHOD

Pool of CostsCost of Goods Available for Sale

Unit TotalDate Explanation Units Cost Cost01/01 Beginning inventory 100 $10 $ 1,00004/15 Purchase 200 11 2,20008/24 Purchase 300 12 3,60011/27 Purchase 400 13 5,200

Total 1,000

$ 5,800 $ 6,200

$ 12,000

PROOF OF COST OF GOODS SOLD

The accuracy of the cost of goods sold can be verified by recognizing that the first units acquired are the first units sold.

The accuracy of the cost of goods sold can be verified by recognizing that the first units acquired are the first units sold.

Unit TotalDate Units Cost Cost01/01 X =04/15 X =08/24 X =Total

100 $ 10 $ 1,000 200 11 2,200 250 12 3,000

550 $ 6,200

LIFO• The LIFO method assumes that the latest

goods purchased are the first to be sold.

• LIFO seldom coincides with the actual physical flow of inventory.

• Under LIFO, the costs of the latest goods purchased are the first goods to be sold.

LIFO

ALLOCATION OF COSTS - LIFO METHOD

Pool of CostsCost of Goods Available for Sale

Unit TotalDate Explanation Units Cost Cost01/01 Beginning inventory 100 $10 $ 1,00004/15 Purchase 200 11 2,20008/24 Purchase 300 12 3,60011/27 Purchase 400 13 5,200

Total 1,000 $ 12,000

$ 5,000 $ 7,000

PROOF OF COST OF GOODS SOLD

The cost of the last goods in are the first to be assigned to cost of goods sold. Under a periodic inventory system, all goods purchased during the period are assumed to be available for the first sale, regardless of the date of purchase.

The cost of the last goods in are the first to be assigned to cost of goods sold. Under a periodic inventory system, all goods purchased during the period are assumed to be available for the first sale, regardless of the date of purchase.

Unit TotalDate Units Cost Cost11/27 X =

X =08/24Total

400 $ 13 $ 5,200 150 12 1,800

550 $ 7,000

AVERAGE COST

• The average cost method – assumes goods available for sale are homogeneous.

– the cost of goods available for sale is allocated on the basis of the weighted average unit cost incurred.

– weighted average unit cost is applied to the units on hand to determine cost of the ending inventory.

AVERAGE COST

ALLOCATION OF COSTS - AVERAGE COST METHOD

Pool of CostsCost of Goods Available for Sale

Unit TotalDate Explanation Units Cost Cost01/01 Beginning inventory 100 $10 $ 1,00004/15 Purchase 200 11 2,20008/24 Purchase 300 12 3,60011/27 Purchase 400 13 5,200

Total 1,000 $ 12,000

$ 5,400 $ 6,600

USE OF COST FLOW METHODS IN MAJOR U.S. COMPANIES

44% FIFO

30% LIFO

21% Average

Cost5% Other5% Other

Companies adopt different inventory cost flow methods for various reasons. Usually one of the following factors is involved: 1) income statement effects, 2) balance sheet effects, or 3) tax effects.

Companies adopt different inventory cost flow methods for various reasons. Usually one of the following factors is involved: 1) income statement effects, 2) balance sheet effects, or 3) tax effects.

A company had the following inventory information for the month of May:

May 1 Beg. Inventory

400 units

@ $10.00 = $ 4,000

8 Purchase 500 units

@ $10.50 = $ 5,250

20 Purchase 600 units

@ $10.60 = $ 6,360

Total units 1,100 $15,610

Assuming the company is using the Lifo method of inventory:Calculate the value of the ending inventory if there are 100 units in ending inventory on May 31st.

Under LIFO, the ending inventory consists of the oldest 100 units, therefore ending inventory = 100 units X $10 = $1,000.

INCOME STATEMENT EFFECTS COMPARED

STUDY OBJECTIVE 3

LIFO FIFO LIFO FIFO Cost of goods sold 4,000 (200 x $20) 4,800 (200 x $24)

Kralik Company buys 200 XR492s at $20 per unit on January 10 and 200 more on December 31 at $24 each. During the year, 200 units are sold at $30 each. Under LIFO, the company recovers the current replacement cost ($4,800) of the units sold. Under FIFO, however, the company recovers only the January 10 cost ($4,000). To replace the units sold, it must invest $800 (200 x $4) of the gross profit. Thus, $800 of the gross profit is said to be phantom or illusory profits. As a result, reported net income is overstated in real terms.

Kralik Company buys 200 XR492s at $20 per unit on January 10 and 200 more on December 31 at $24 each. During the year, 200 units are sold at $30 each. Under LIFO, the company recovers the current replacement cost ($4,800) of the units sold. Under FIFO, however, the company recovers only the January 10 cost ($4,000). To replace the units sold, it must invest $800 (200 x $4) of the gross profit. Thus, $800 of the gross profit is said to be phantom or illusory profits. As a result, reported net income is overstated in real terms.

USING INVENTORY COST FLOW METHODS CONSISTENTLY

• Consistency – Companies needs to use its chosen cost flow

method from one period to another.– Consistent application makes financial

statements comparable over successive time periods.

– If a company adopts a different cost flow method:

• The change and its effects on net income must be disclosed in the financial statements

• Value of inventory is lower than its cost– The inventory is written down to its

market value

• Known as the lower of cost or market (LCM) method

• LCM basis– Market is defined as current replacement

cost, not selling price

VALUING INVENTORY AT THE LOWER OF COST OR MARKET

STUDY OBJECTIVE 4

COMPUTATION OF LOWER OF

COST OR MARKET

$ 159,000

• both beginning and ending inventories appear on the income statement

• ending inventory of one period automatically becomes the beginning inventory of the next period

• inventory errors– affect the determination of cost of goods sold and net income

INVENTORY ERRORS - INCOME STATEMENT EFFECTS

STUDY OBJECTIVE 5

FORMULA FOR COST OF GOODS SOLD

+ =BeginningInventory

Cost of Goods

Purchased

EndingInventory

Cost of GoodsSold

_

the effects on cost of goods sold can be determined by entering the incorrect data in the above formula and then substituting the correct data

the effects on cost of goods sold can be determined by entering the incorrect data in the above formula and then substituting the correct data

EFFECTS OF INVENTORY ERRORS ON CURRENT YEAR’S INCOME

STATEMENT

Understate beginning inventory Understated Overstated

Overstate beginning inventory Overstated Understated

Understate ending inventory Overstated Understated

Overstate ending inventory Understated Overstated

An error in ending inventory of the current period will have a reverse effect on

net income of the next period.

Assets = Liabilities + Owners EquityAssets = Liabilities + Owners Equity

the effect of ending inventory errors on the balance sheet can be determined by the basic accounting equation:

ENDING INVENTORY ERROR - BALANCE SHEET EFFECTS

Errors in the ending inventory have the following effects on these components:

Overstated Overstated None Overstated Understated Understated None Understated

ENDING INVENTORY ERROR - BALANCE SHEET EFFECTS

Note 1. Summary of accounting policiesInventoriesThe company uses the retail, last-in, first-out (LIFO) method for the Wal-Mart Stores segment, cost LIFO for the SAM’S CLUB segment, and other cost methods, including the retail first-in, first-out (FIFO) and average costs methods, for the International segment. Inventories are not recorded in excess of market value.

INVENTORY DISCLOSURES• Inventory – classified as a current asset after receivables in the balance sheet

• Cost of goods sold – subtracted from sales in the income statement

•Disclosure either in the balance sheet or in accompanying notes for:

1 major inventory classifications2 basis of accounting (cost or lower of cost or market)3 costing method (FIFO, LIFO, or average cost)

Wal-Mart Stores, IncNotes to the Financial Statements

The inventory turnover ratio measures the number of times, on average, the inventory is sold during the period – which measures the liquidity of the inventory. It is computed by dividing cost of goods sold by average inventory during the year. Assume that Wal-Mart, Inc. has a beginning inventory of $21,442 million and ending inventory of $21,614 and cost of goods sold for 2002 of $171,562; its inventory turnover formula and computation is shown below:

INVENTORY TURNOVER FORMULA AND COMPUTATION

STUDY OBJECTIVE 6

COST OF GOODS SOLD INVENTORY TURNOVER = ———————————— AVERAGE INVENTORY

7.97 times = $171,562($21,442 + $21,614) /2

APPENDIX 6A INVENTORY COST FLOW METHODS IN

PERPETUAL INVENTORY SYSTEMS

To illustrate the application of the 3 assumed cost flow methods (FIFO, Average Cost, and LIFO), the data shown below for Bow Valley Electronics’ product Z202 Astro Condenser is used.

To illustrate the application of the 3 assumed cost flow methods (FIFO, Average Cost, and LIFO), the data shown below for Bow Valley Electronics’ product Z202 Astro Condenser is used.

Bow Valley ElectronicsZ202 Astro Condensers

Unit TotalDate Explanation Units Cost Cost01/01 Beginning inventory 100 $10 $ 1,00004/15 Purchase 200 11 2,20008/24 Purchase 300 12 3,60011/27 Purchase 400 13 5,200

Total $ 12,000

PERPETUAL SYSTEM - FIFO

Under FIFO, the cost of the earliest goods on hand prior to each sale is charged to cost of goods sold. Therefore, the cost of goods sold on September 10 consists of the units on hand January 1 and the units purchased April 15 and August 24.

Under FIFO, the cost of the earliest goods on hand prior to each sale is charged to cost of goods sold. Therefore, the cost of goods sold on September 10 consists of the units on hand January 1 and the units purchased April 15 and August 24.

Under the LIFO method using a perpetual system, the cost of the most recent purchase prior to sale is allocated to the units sold. The cost of the goods sold on September 10 consists entirely of goods from the August 24 and April 15 purchases and 50 of the units in beginning inventory.

Under the LIFO method using a perpetual system, the cost of the most recent purchase prior to sale is allocated to the units sold. The cost of the goods sold on September 10 consists entirely of goods from the August 24 and April 15 purchases and 50 of the units in beginning inventory.

PERPETUAL SYSTEM - LIFO

PERPETUAL SYSTEM - AVERAGE COST

The average cost method in a perpetual inventory system is called the moving average method. Under this method a new average is computed after each purchase. The average cost is computed by dividing the cost of goods available for sale by the units on hand. The average cost is then applied to

1. the units sold, to determine the cost of goods sold, and,

2. the remaining units on hand, to determine the ending inventory amount.

The average cost method in a perpetual inventory system is called the moving average method. Under this method a new average is computed after each purchase. The average cost is computed by dividing the cost of goods available for sale by the units on hand. The average cost is then applied to

1. the units sold, to determine the cost of goods sold, and,

2. the remaining units on hand, to determine the ending inventory amount.

As indicated below, a new average is computed each time a purchase is made. On April 15, after 200 units are purchased for $2,200, a total of 300 units costing $3,200 ($1,000 + $2,200) are on hand. The average cost is $10.667 ($3,200/300).

PERPETUAL SYSTEM - AVERAGE COST METHOD

APPENDIX 6BESTIMATING INVENTORIES

• Two circumstances for estimating inventories:

1 management may want monthly or quarterly financial statements, but a physical inventory is usually only taken annually.

2 a casualty such as a fire or flood may make it impossible to take a physical inventory.

•Two widely used methods of estimating inventories:

1 the gross profit method and 2 the retail inventory method

• Gross profit method – Estimates the cost of ending inventory by

applying a gross profit rate to net sales

• used in preparing monthly financial statements under a periodic system

• should NOT be used in preparing the company’s financial statements at year-end

• is assumed to remain constant from one year to the next

GROSS PROFIT METHOD

Step 2 Cost of goods available for sale less estimated cost of goods sold (from Step 1) equals the estimated cost of ending inventory.

Step 2 Cost of goods available for sale less estimated cost of goods sold (from Step 1) equals the estimated cost of ending inventory.

Net SalesEstimated

Gross Profit

Cost of GoodsAvailable for

Sale

EstimatedCost of

Goods Sold

EstimatedCost of

Goods Sold

EstimatedCost of Ending

Inventory

Step 1 Net sales less estimated gross profit equals estimated cost of goods sold.

GROSS PROFIT METHOD FORMULAS

• A store has many different types of merchandise at low unit costs– the retail inventory method is often used

– a company’s records must show both the cost and retail value of the goods available for sale

• Major disadvantage– it is an averaging technique

RETAIL INVENTORY METHOD

Ending Inventoryat Retail

Ending Inventoryat Retail

Step 1

Cost to RetailRatio

Cost to RetailRatio

GoodsAvailable forSale at Retail

Net Sales

GoodsAvailable forSale at Cost

GoodsAvailable forSale at Retail

Step 2

EstimatedCost of Ending

Inventory

EstimatedCost of Ending

Inventory

Step 3

EndingInventoryat Retail

Cost toRetailRatio

RETAIL INVENTORY METHOD FORMULAS

DETERMINING COST OF GOODS ON HAND

Under the periodic method, cost of inventory on hand is determined from a physical inventory requiring:

1 counting the units on hand for each item of inventory

2 applying unit costs to the total units on hand for each item

3 totaling the cost of each item of inventory to determine total cost of goods on hand

A company had the following inventory information for the month of May:May 1 Beg. Inventory 400 units @ $10.00 = $ 4,000

8 Purchase 500 units @ $10.50 = $ 5,250

20 Purchase 600 units @ $10.60 = $ 6,360

Total units and cost 1,500 $15,610

Assuming the company is using the LIFO method of inventory:

Calculate the value of the ending inventory if there are 100 units in ending inventory on May 31.

A company had the following inventory information for the month of May:

May 1 Beg. Inventory

400 units

@ $10.00 = $ 4,000

8 Purchase 500 units @ $10.50 = $ 5,250

20 Purchase 600 units @ $10.60 = $ 6,360

Total units and cost 1,500 $15,610

Assume an ending inventory of 100 units, then ending inventory would consist of the oldest layer:

100 units @ $10.00 = $1,000

(Cost of Goods sold would be equal to (Cost of Goods available for Sale - Ending Inventory) $15,610-$1,000= $14,610

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